Raw material mixture for concrete manufacturing

FIELD: chemistry.

SUBSTANCE: raw material mixture for concrete manufacturing contains, wt %: Portland cement 27.0-31.0; TPS fly ash 44.9-46.2; superplasticiser C-3 0.6-0.8, fibrous cermet 0.5-5.0; water 21.0-23.0.

EFFECT: increased strength of concrete.

1 tbl

 

The invention relates to the construction materials industry, in particular, to the production of concrete.

Famous raw mix for the production of concrete (foam concrete) containing, wt.%: cement 35,0-39,0; fly ash TPP 35,0-39,0; resin air entraining extraction-rosin 0,11-0,.17; carboxymethylcellulose 0,05-0,07; superplasticizer C-3 0,4-1,4; water - the rest [2]. Such a composition of the raw mix includes a large number of expensive cement.

The objective of the invention is to reduce cement consumption while ensuring the strength of the concrete.

Technical result is achieved by the fact that the raw mix for the production of concrete containing Portland cement, fly ash of thermal power plants, superplasticizer C-3, water, further comprises a fibrous cermets in the following ratio, wt.%: Portland 27,0-31,0; ash TPP 44,9-46,2; superplasticizer C-3 0,6-0,8; fibrous ceramics 0,5-5,0; water 21,0-23,0.

Fibrous metal based ceramic material consisting of pieces of thin metal fibers in the form of a wire with a diameter of not more than 50-70 microns and a length of 3-10 mm

The composition of the raw mix for the production of concrete is given in the table.

Table
Components Content, wt.%:
composition No. 1composition No. 2composition No. 3
Portland cement (M500)27,029,031,0
Ash TES46,245,844,9
Superplasticizer C-30,80,70,6
Fibrous
metal
5,02,50,5
Water21,022,023,0

The components are metered. Portland cement, fly ash, fiber cermets mix, add water, superplasticizer C-3 and prepare the raw material mixture in which metal fill shapes. The mixture is compacted in the forms and kept it until hardened. The compressive strength of the products obtained from the proposed raw mix, will be not less than 10 MPa.

The proposed use of the raw mix can reduce the consumption of cement.

The source of information

1.RU No. 2237041, C04B 38/10, 2003.

Raw mix for the production of concrete containing Portland cement, fly ash of thermal power plants, superplasticizer C-3, water, characterized in that it further comprises fibrous cermets in the following ratio, wt.%: Portland 27,0-31,0; ash TPP 44,9-46,2; superplasticizer C-3 0,6-0,8; fibrous ceramics 0,5-5,0; water 21,0-23,0.



 

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1 ex, 1 tbl

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